BZX84C…LT1 Series
ZENER VOLTAGE REGULATORS
225mW SOT-23 Surface Mount
This series of Zener diodes is offered in the convenient,
SOT-23
surface mount plastic SOT-23 package. These
devices are designed to provide voltage regulation
with minimum
space requirement. They are well suited
for applications such as cellular phones, hand held
portables, and high density PC boards.
Features
•
•
•
•
•
225 mW Rating on FR-4 or FR-5 Board
SOT-23 Plastic Package
Zener Breakdown Voltage Range –2.4V to 75V
Package Designed for Optimal Automated Board
Assembly
Small Package Size for High Density Applications
ESD Rating of Class 3(>16KV) per Human Body Model
3
CATHODE
1
ANODE
Mechanical Data
•
•
•
•
Case:
Void-free, transfer-molded, thermosetting plastic case
Finish:
Corrosion resistant finish, easily solderable
Polarity:
Cathode indicated by polarity band
Maximum Case Temperature for Soldering Purposes:
260
o
C for 10 Seconds
Absolute Maximum Ratings (T
a
= 25
o
C)
Symbol
Total Power Dissipation on FR-5 Board,
o
(Note 1.)@T
A
= 25 C
o
Derated above 25 C
Thermal Resistance-Junction to Ambient
Total Power Dissipation on Alumina Substrate,
o
(Note 2.) @T
A
=25 C
o
Derated above 25 C
Thermal Resistance-Junction to Ambient
Junction and Storage Temperature Range
1.
2.
FR-5 = 1 X 0.75 X 0.62 in.
Alumina = 0.4 X 0.3 X 0.024 in, 99.5% alumina
P
D
225
1.8
R
θJA
P
D
300
2.4
R
θJA
T
j
,T
S
417
-65 to +150
mW
o
mW/ C
o
Value
Unit
mW
o
mW/ C
o
556
C/W
C/W
O
C
SEMTECH ELECTRONICS LTD.
(Subsidiary
of Semtech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
R
Dated : 22/01/2005
BZX84C…LT1 Series
Electrical
Characteristics
( Ta = 25
o
C unless otherwise noted, V
F
= 0.90V Max. @ I
F
= 10mA)
Device
Min
BZX84C2V4LT1
BZX84C2V7LT1
BZX84C3V0LT1
BZX84C3V3LT1
BZX84C3V6LT1
BZX84C3V9LT1
BZX84C4V3LT1
BZX84C4V7LT1
BZX84C5V1LT1
BZX84C5V6LT1
BZX84C6V2LT1
BZX84C6V8LT1
BZX84C7V5LT1
BZX84C8V2LT1
BZX84C9V1LT1
BZX84C10LT1
BZX84C11LT1
BZX84C12LT1
BZX84C13LT1
BZX84C15LT1
BZX84C16LT1
BZX84C18LT1
BZX84C20LT1
BZX84C22LT1
BZX84C24LT1
2.2
2.5
2.8
3.1
3.4
3.7
4
4.4
4.8
5.2
5.8
6.4
7
7.7
8.5
9.4
10.4
11.4
12.4
14.3
15.3
16.8
18.8
20.8
22.8
V
Z1
(Volts)
@I
ZT1
= 5mA
(Note 3.)
Nom
2.4
2.7
3
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.2
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
V
Z
Below
@I
ZT1
=2mA
Device
Min
BZX84C27LT1
BZX84C30LT1
BZX84C33LT1
BZX84C36LT1
BZX84C39LT1
BZX84C43LT1
BZX84C47LT1
BZX84C51LT1
BZX84C56LT1
BZX84C62LT1
BZX84C68LT1
BZX84C75LT1
25.1
28
31
34
37
40
44
48
52
58
64
70
Nom
27
30
33
36
39
43
47
51
56
62
68
75
Max
28.9
32
35
38
41
46
50
54
60
66
72
79
Max
2.6
2.9
3.2
3.5
3.8
4.1
4.6
5
5.4
6
6.6
7.2
7.9
8.7
9.6
10.6
11.6
12.7
14.1
15.8
17.1
19.1
21.2
23.3
25.6
Z
ZT1
(Ohms)
@I
ZT1
=
5mA
100
100
95
95
90
90
90
80
60
40
10
15
15
15
15
20
20
25
30
30
40
45
55
55
70
Z
ZT1
Below
@I
ZT1
=
2mA
80
80
80
90
130
150
170
180
200
215
240
255
V
Z2
(Volts)
@ I
ZT2
= 1mA
(Note 3.)
Min
1.7
1.9
2.1
2.3
2.7
2.9
3.3
3.7
4.2
4.8
5.6
6.3
6.9
7.6
8.4
9.3
10.2
11.2
12.3
13.7
15.2
16.7
18.7
20.7
22.7
Max
2.1
2.4
2.7
2.9
3.3
3.5
4
4.7
5.3
6
6.6
7.2
7.9
8.7
9.6
10.6
11.6
12.7
14
15.5
17
19
21.1
23.2
25.5
Z
ZT2
(Ohms)
@I
ZT2
=
1mA
(Note 4.)
600
600
600
600
600
600
600
500
480
400
150
80
80
80
100
150
150
150
170
200
200
225
225
250
250
Z
ZT2
Below
@I
ZT4
=
0.5mA
(Note 4.)
300
300
325
350
350
375
375
400
425
450
475
500
V
Z3
(Volts)
@ I
ZT3
= 20mA
(Note 3.)
Min
2.6
3
3.3
3.6
3.9
4.1
4.4
4.5
5
5.2
5.8
6.4
7
7.7
8.5
9.4
10.4
11.4
12.5
13.9
15.4
16.9
18.9
20.9
22.9
Max
3.2
3.6
3.9
4.2
4.5
4.7
5.1
5.4
5.9
6.3
6.8
7.4
8
8.8
9.7
10.7
11.8
12.9
14.2
15.7
17.2
19.2
21.4
23.4
25.7
50
50
50
40
40
30
30
15
15
10
6
6
6
6
8
10
10
10
15
20
20
20
20
25
25
Z
ZT3
Below
@I
ZT3
=
10mA
Z
ZT3
(Ohms)
@I
ZT3
=
20mA
Max Reverse
Leakage
Current
I
R
@ V
R
µA
Volts
50
20
10
5
5
3
3
3
2
1
3
2
1
0.7
0.5
0.2
0.1
0.1
0.1
0.05
0.05
0.05
0.05
0.05
0.05
1
1
1
1
1
1
1
2
2
2
4
4
5
5
6
7
8
8
8
10.5
11.2
12.6
14
15.4
16.8
VZ
(mV/k)
@ I
ZT1
= 5mA
Min
-3.5
-3.5
-3.5
-3.5
-3.5
-3.5
-3.5
-3.5
-2.7
-2.0
0.4
1.2
2.5
3.2
3.8
4.5
5.4
6.0
7.0
9.2
10.4
12.4
14.4
16.4
18.4
VZ
c(pF)
@V
R
=0
f=1MHz
Max
0
0
0
0
0
-2.5
0
0.2
1.2
2.5
3.7
4.5
5.3
6.2
7.0
8.0
9.0
10.0
11.0
13.0
14.0
16.0
18.0
20.0
22.0
450
450
450
450
450
450
450
260
225
200
185
155
140
135
130
130
130
130
120
110
105
100
85
85
80
V
Z2
Below
@ I
ZT2
=0.1mA
V
Z3
Below
@ I
ZT3
=10mA
Max Reverse
Leakage
Current
I
R
@ V
R
µA
Volts
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
18.9
21
23.1
25.2
27.3
30.1
32.9
35.7
39.2
43.4
47.6
52.5
(mV/k) Below
@ I
ZT1
=2mA
Min
21.4
24.4
27.4
30.4
33.4
37.6
42.0
46.6
52.2
58.8
65.6
73.4
Max
25.3
29.4
33.4
37.4
41.2
46.6
51.8
57.2
63.8
71.6
79.8
88.6
c(pF)
@V
R
=0
f=1MHz
Min
25
27.8
30.8
33.8
36.7
39.7
43.7
47.6
51.5
57.4
63.4
69.4
Max
28.9
32
35
38
41
46
50
54
60
66
72
79
Min
25.2
28.1
31.1
34.1
37.1
40.1
44.1
48.1
52.1
58.2
64.2
70.3
Max
29.3
32.4
35.4
38.4
41.5
46.5
50.5
54.6
60.8
67
73.2
80.2
45
50
55
60
70
80
90
100
110
120
130
140
70
70
70
70
45
40
40
40
40
35
35
35
3. Tested with pulses tp = 20 ms.
4. The Zener impedance, Z
ZT2
, for the 27 through 75 volt types is tested at 0.5 mA rather than the test current of
0.1mA used for V
Z2
SEMTECH ELECTRONICS LTD.
(Subsidiary
of Semtech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
R
Dated : 22/01/2005
BZX84C…LT1 Series
Temperature Coefficient
8
Temperature Coefficient
100
Temperature Coefficient (mV/ C)
Temperature Coefficient (mV/ C)
7
6
5
4
3
2
1
0
-1
-2
-3
3
4
5
6
7
8
9
10
11
12
10
1
10
100
Nominal Value
Vz ( V )
Zener voltage Vz (v)
Power Derating Curve
400
FORWARD CURRENT I
F
(mA)
Typical Forward Voltage
220
200
180
160
140
120
100
80
60
5V1
27V
Power Dissipation P
d
(mW)
300
200
100
40
20
0
0
0
50
100
150
200
500
700
900
1100
Ambient Temperature T
amb
( C)
Forward Voltage V
F
(mV)
Zener Voltage Regulator
SEMTECH ELECTRONICS LTD.
(Subsidiary
of Semtech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
R
Dated : 22/01/2005
